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Methods and apparatuses for multi-radio coexistence

a multi-radio and coexistence technology, applied in the field of wireless communication, can solve the problems of packet loss, oob emissions from one transceiver, and degrading the communication ability of the radio

Inactive Publication Date: 2012-05-17
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One issue with multi-radio platforms is that interference between receptions and transmissions of the co-located transceivers may result in packet loss from collisions degrading the communication abilities of the radios.
Out-of-band (OOB) emissions from one transceiver may interfere with the other transceiver.
When one radio is transmitting, the radio may cause substantial interference to another co-located radio and prevent the co-located radio from receiving correctly.

Method used

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  • Methods and apparatuses for multi-radio coexistence
  • Methods and apparatuses for multi-radio coexistence
  • Methods and apparatuses for multi-radio coexistence

Examples

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embodiments

[0055]In one embodiment, a radio module (e.g., WiFi radio module 120 with respect to FIG. 1) is operable to schedule transmission within a transmission opportunity period (TXOP) and to determine a reception opportunity period (RXOP). The frame synchronization signal is from another radio module (e.g., 4G radio module 110) co-located with the WiFi radio. The 4G radio module is operable to send data during an uplink period (UL) and to receive data during a downlink period (DL).

[0056]In one embodiment, a radio module determines / calculates a DL start time which is a part of estimated frame timing information. The WiFi radio module schedules the transmission based at least on the DL start time such that the transmission end time is aligned to before DL start time and a corresponding transmission acknowledgment is aligned to after the DL start time.

[0057]In one embodiment, a radio module determines a UL start time which is part of estimated frame timing information. The radio module deter...

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Abstract

A method for coexistence radio communication systems is presented. In one embodiment, the method includes receiving a realtime frame synchronization signal and receiving one or more frame parameters. The method further includes determining, based at least on the frame synchronization signal and the frame parameters, estimated frame timing information and scheduling transmission based on the estimated frame timing information to avoid collision of the transmission and reception.

Description

FIELD OF THE INVENTION[0001]Embodiments of the invention relate to wireless communication; more particularly, embodiments of the invention pertain to coexistence between two or more radio communications.BACKGROUND OF THE INVENTION[0002]Multi-radio platforms (MRP) are wireless communication devices with co-located transceivers that communicate using two or more communication techniques. In some cases, the two radio access technologies (RATs) are used to perform different functions. In such case, both radios need to maintain active connections to their respective networks at the same time.[0003]One issue with multi-radio platforms is that interference between receptions and transmissions of the co-located transceivers may result in packet loss from collisions degrading the communication abilities of the radios. This is especially a concern in multi-radio platforms that include Wi-Fi (e.g., IEEE 802.11n-2009—Amendment 5: Enhancements for Higher Throughput. IEEE-SA. 29 Oct. 2009) and 4G...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04J3/06
CPCH04L7/04H04W28/042H04W28/048H04W74/0816H04W48/16H04W56/00H04W72/1215H04W28/18H04W28/04H04W74/0841
Inventor YANG, XUEAVITAL, SHLOMOGUO, XINGANG
Owner INTEL CORP
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